Finding the Fourth Proportional to 412.82, 619.14 and 207.26
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Solution
The fourth proportional to 412.82, 619.14 and 207.26 is: 310.84
Step by Step Solution
- Step 1: Write the proportion equation
412.82 : 619.14 = 207.26 : x - Step 2: Convert to fraction form
412.82/619.14 = 207.26/x - Step 3: Cross multiply
412.82x = 619.14 × 207.26 - Step 4: Simplify right side
412.82x = 128,322.96 - Step 5: Solve for x
x = 128,322.96/412.82 - Step 6: Final answer
x = 310.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.